It's time to exercise your national park brain muscles again, with this Quiz and Trivia #9. See just how much you know and learn a little something at the same time.

It's time, again, to test your national parks knowledge with the Traveler's National Parks Quiz And Trivia #6. See just how much you know about your national parks, and learn a little, too.

Hawai'i Volcanoes National Park is the latest park to announce its closure to the public, with staff saying the park would be closed beginning Sunday.

It gets woefully hot in West Texas during the summer months, with temperatures routinely in the mid-90s and a hot, glaring sun shining down on Big Bend National Park staff and visitors alike. Yet while park staff five years ago invested a quarter-million dollars in air-conditioning units for offices and shade shelters for campgrounds, the equipment was never installed, according to an Inspector General's investigation.